MAYBE
(ignored inputs)COMMENT [103] Example 2.5
Rewrite Rules:
   [ f(h(?x,d),?y) -> f(h(?y,d),?x),
     h(c,?x) -> h(?x,?x) ]
Apply Direct Methods...
Inner CPs:
   [ f(h(d,d),?y) = f(h(?y,d),c) ]
Outer CPs:
   [  ]
Left-Linear, not Right-Linear
(inner) Parallel CPs: (not computed)
unknown Toyama (Parallel CPs)
Direct Methods: Can't judge

Combined result: Can't judge
498.trs: Failure(unknown CR)
(0 msec.)